Metallic pole.



No. 731,177. PATENTED JUNE'16.,-1903.

. W. s. GRAY. METALLIC POLE.

APPLICATION FILED OCT. 24, 1902.

2 SHEETS-SHEET 1.

N0 MODEL.

' ,177. PATENTED JUNE 16, 1903.

W. s. GRAY. METALLIC POLE. APPLICATION FILED OUT. 24, 1902.

H0 MODEL.

2 SHEETS-SHEET 2.

s PEYERS 00.. PH010-LITHO. WASHINGTON o c UNITED STATES Patented June 16, 1903.

VATSON S. GRAY, OF PHILADELPHIA, PENNSYLVANIA.

METALLIC -P OLE.

SPECIFICATION forming part of Letters Patent No. 731,177, dated June 16, 1903.

Application filed October 24, 1902. Serial No. 128,542- (No model.)

To all whom, it may concern:

Be itknown thatI, WATSON S. GRAY, a citizen of the United States, and a resident of the city and county of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Metallic Poles, of which the following is a specification.

My invention relates to improvements in metallic poles or towers for telegraphic or other purposes; and the object of my invention is to furnish a light and strong pole that can be constructed either on the ground for short lengths and raised or which can be for long poles built section after section in place.

In the accompanying drawings, forming part of this specification, and in which similar characters of reference indicate similar part-s throughout the several views, Figure 1 is a side elevation of my metallic pole as erected; Fig. 2, a section of the pole on line 2 2; Fig. 3, a section on line 3 3; Fig. 4, a section on line 4 4; Fig. 5, a section on line 5 5; Fig. 6, a section on line 6 6; Fig. 7, a section on line 7 7; Fig. 8,a section of Fig. 4 on line 8 8; Fig. 9, a section of Fig. 5 on line 9 9; Fig. 10, a plan of device for locking the continuous tubes to the form of plate shown in Fig. 11; Fig. 11, a plan of one form of tube-carrying plate; Fig. 12, a plan of devices for locking continuous tubes to the form of plate shown in Fig. 13; Fig. 13, a plan of a modified form of tube-carrying plate; Fig. 14, a side elevation of part of a pole and insulated socket for carrying the same.

Referring to Figs. 1, 4, and 7, a a a are tubes the lower ends of which are secured by nuts I) or in any other suitable manner to a plate 0 of circular or any other form.

61 is a plate to which the upper ends of rods or tubes a are secured by means of nuts 6 or other suitable devices.

fis a plate placed between plates '0 and d,

through which the rods or tubes 0. pass. This plate may be secured to and carried by rods or tubes a, or it may be carried by a rod or post 2, Figs. 1, 6, and 7, carried by plate 0, as shown, or it may rest upon the ground.

g represents rods or tubes, the lower ends of which are suitably secured to platefiwhich pass-through plate (Z, and the upper ends of which are secured to plate h.

'5 represents rods or tubes, the lower ends of which are secured to plate d, which pass through plate h, and the upper ends of which are suitably secured to plate j.

k represents rods or tubes, the lower ends of which are suitably secured to plate h,which pass through platej, and the upper ends of which are secured to plate Z.

m is the top rod of the pole. Its lower end is carried, preferably, by platej and it passes through and projects beyond plate Z and may carry any desired fixture or fixtures.

By the construction illustrated the pole may be built to any length desired. It will be noticed that a set of rods or tubes starting atone plate pass through the next plate and end at the third plate and that the next set of rods start at the second plate, pass through the third plate and end at the fourth plate, and so on. This construction furnishes a base or tie at or about midway of the length of each set of rods and insures a very strong and rigid structure.

.In building the pole in place the several plates form or may carry platforms for the workmen engaged in its erection.

In Figs. 10, 11, 12, and 13 I show two different constructions of plate. In Fig. 11 the plate 7 is furnished with a Y-shaped slot y, through which the rods not secured to the plate or the continuous rods may pass. This plate being secured to the rods which carry it, the continuous rods are passed through slot y and are secured at their lower ends to the next lowest or their carrying plate, after which the keeper'n, Fig. 10, is placed over the slot 1 as shown in dotted lines, Fig. 11, and full lines, Fig. 8, and secured to plate and prevents any lateral movement of the rods in the plate.

In Fig. 13 the plate is furnished with radial slots 0 to receive the continuous rods, which are finally held in place by the keepers shown in Fig. 12, which are adapted to be bolted to the plate. The keepers 1 are preferably three in number, each being furnished with a notch 2 to engage one side of the continuous rods, the other side of which is held by the end of the radial slot 0 in plate f. These three keepers are adapted when together to form a circular plate, which rests against plate f, to which they are bolted.

The rods may be insulated from the plates in any suitable niannr. In Figs. 8 and 9 two forms of insulation, of fiber or other suitable material, are shown, 10 being the form of insulation for the rod passing through one of the plates and 7' that for the rod terminating at a plate. In the latter case in addition to the flanged cylindrical insulator a washer s is used. In Fig. 14 is shown an insulated socket for holding the lower end of a poleas the upper pole m, for instance. if is a U- shaped metal socket, furnished with a flange u, adapted to rest in a hole in platej. Within this socket is the insulating material 12, upon and against which the pole m rests.

Having thus described my invention, I claim-- 1. In a-metallic pole, in combination, a series of rods or tubes, plates to the ends of which said rods or tubes are secured, a plate carried substantially at right angles by said rods or tubes, and between said first plates and a series of rods or tubes carried by said latter plate and passing through the upper of said former plates and a plate to which the upper ends of said latter rests are secured.

2. The described means for holdingthe ends of one series of rods or tubes and for staying another series of rods or tubes consisting of a plate furnished with holes to receive the ends of the first series and slots to receive the second series and a removable plate adapted to be bolted to said first plate to close the slots therein.

WATSON S. GRAY.

Witnesses:

GEORGE W. SELTZER, CHARLES A. RUTTER. 

